Hitachi RCD-0.8FSN3 Installation And Operation Manual page 23

INDOOR UNIT INSTALLATION
3 Mounting Nuts and Washers
Screw nuts and washers on the suspension bolts before
mounting the indoor unit.
?
N O T E
Make sure to use washers (accessories) for fixing the suspension
bolts to the suspension brackets. The washer with insulation must
be fitted with the insulation side downward to facilitate hanging work.
Suspension bolt
(Field-supplied)
Nut (Field-supplied)
Washer with insulation
(Accessory)
Suspension bracket
(Attached indoor unit)
Washer (Accessory)
Nut (Field-supplied)
Surface of ceiling
4 Mounting Indoor Unit
a. Lift up the indoor unit by a hoist, and do not apply any
force to the drain pan (the air outlet portions and the
drain pan portion).
Suspension
bolt
Suspension
bracket
b. Insert the suspension bolts into the notches of the
suspension brackets to hook the indoor unit.
c. Secure the indoor unit using nuts and washers. Then
check that the washers serve as stoppers at the rising
parts of the suspension brackets.
?
N O T E
After hooking up the indoor unit, piping and wiring work inside
the ceiling are required. Thus, especially if the false ceiling
has already been installed, determine the pipe direction and
complete the rest of the piping and wiring work before hooking
the indoor unit.
19 PMML0425A rev.0 - 02/2016 - P5415720
5 Adjusting Indoor Unit Position
Adjust the position of the indoor unit with the checking scale
as required.
a. For False Ceiling with Opening
When installing the indoor unit to the false ceiling with an
opening, check the dimension of opening and adjust the
clearance between the indoor unit and the opening.
(mm)
Surface of ceiling
Attach the
scale to the
surface of
ceiling
b. For False Ceiling without Opening
If there is no opening in the existing false ceiling, provide
an opening in it before mounting the indoor unit. Cut out
the false ceiling. After hooking up the indoor unit, adjust
the position according to the procedure (a).
Drain pan
100
Indoor unit
Check the 4 corner of the clearance
between the IU and the opening
For long dimension of opening
Checking
For short dimension of opening
scale
Indoor unit
Attach the scale
to the bottom
side of the unit
Checking scale
1060 (0.8 to 3.0 HP)
1620 (4.0 to 6.0 HP)
Dimension of opening
Pattern board for installation
View for the bottom
(mm)
100
Indoor unit